Radiator Stop Leak, 400ml

  • Available now!
  • Item no.: K2-T231
  • Shipping weight: 0,50 kg
  • Shipping time: 1 - 3 workdays
  • Our price : 6,00 €
  • Base price: 15,00 € per l
  • including 20% VAT., plus shipping (Paket Standard)
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Radiator Stop Leak 400ml is a fast acting, effective and safe liquid radiator sealant.

Due to the unique aluminum microparticles contained in the product, Radiator Stop Leak finds at lightning speed the smallest leak in the radiator and closes it effectively and safely . The preparation does not influence the refrigerant circulation so that the thermal effect of the radiator is not impaired.

It is safe for all kinds of radiator. It can be used in combinationation with other refrigerant agents.


  • Radiator Stop Leak should be well shaken before use.
  • If the engine is cold and off, open the expansion tank or if it is not available, the filling opening of the cooler.
  • Caution: a hot radiator must never be opened because it can lead to serious burns.
  • Start the engine and let it run at idle. Wait until the cooler is a little bit heated up.
  • Then pour the liquid into the filling opening of the radiator or the expansion tank and then close the radiator or the expansion tank.
  • When this is done, you run the engine at a speed 2500-3000 r / min approximately 15min long run so that the sealant is evenly distributed.
  • If afterwards a spot in the cooler continues to leak, you probably need to completely renew the radiator at a workshop.
  • After treatment, Radiator Stop Leak protects your radiator present leaks and prevents formation of further leaks in the radiator.

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